
VERTEX Cast Piston – Manufacturer Ref. 23429EF
Cast aluminum piston designed for Cross cylinders, offered as a reliable replacement part for small 50 cm³ engines. Designed for a bore of 39.50 mm, this piston has a measured diameter of Ø 39.480 mm (referenced Ø 39.48 mm) and carries the oversize letter EF. Compression: standard. Replacement ring: 267300.
This piston is suitable for mechanics and preparers looking for an accurate replacement part for the listed cylinders. It is particularly suitable for the 50 cm³ models mentioned among common applications: KTM 50 SX FACTORY EDITION (2025), HUSQVARNA TC 50 (2025), and GAS GAS MC 50 (2025). Always check the bore diameter and the oversize letter in your engine before installation to ensure correct piston clearance and long cylinder life.